USB: Fix initconst in ehci driver

Fix some of the initconst markings in the ehci driver(s).

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/ehci-mxc.c

@@ -43,7 +43,7 @@ struct ehci_mxc_priv {
 
 static struct hc_driver __read_mostly ehci_mxc_hc_driver;
 
-static const struct ehci_driver_overrides ehci_mxc_overrides __initdata = {
+static const struct ehci_driver_overrides ehci_mxc_overrides __initconst = {
 	.extra_priv_size =	sizeof(struct ehci_mxc_priv),
 };